CN112983251A - Drilling machine power head for various drilling processes - Google Patents
Drilling machine power head for various drilling processes Download PDFInfo
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- CN112983251A CN112983251A CN201911215179.1A CN201911215179A CN112983251A CN 112983251 A CN112983251 A CN 112983251A CN 201911215179 A CN201911215179 A CN 201911215179A CN 112983251 A CN112983251 A CN 112983251A
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- 238000005553 drilling Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 55
- 230000008569 process Effects 0.000 title claims abstract description 55
- 244000261422 Lysimachia clethroides Species 0.000 claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- 238000006073 displacement reaction Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 239000003921 oil Substances 0.000 claims description 54
- 230000001050 lubricating effect Effects 0.000 claims description 29
- 239000002893 slag Substances 0.000 claims description 27
- 239000010687 lubricating oil Substances 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 14
- 238000005070 sampling Methods 0.000 description 9
- 239000011435 rock Substances 0.000 description 5
- 229910003460 diamond Inorganic materials 0.000 description 4
- 239000010432 diamond Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000011112 process operation Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Drilling And Boring (AREA)
Abstract
The present invention provides a drill head for multiple drilling processes, comprising: the variable displacement motor, the gearbox, the gear box, the core tube sealing box, the drilling device, the sliding device, the gooseneck, the gear shifting mechanism and the hydraulic control device; the variable motor is in transmission connection with a gearbox, the gearbox is fixed on the gearbox, and a gearbox output shaft is arranged in the gearbox; the gear box is provided with a hollow gear box output shaft, and the variable displacement motor transmits power to the gear box output shaft through the gear box and the gear box; one end of the output shaft of the gear box is connected with the core tube sealing box, and the other end of the output shaft of the gear box is connected with the drilling device; the drilling device is a gas discharging box or a conversion device; the sliding device is arranged on the gear box; the gooseneck is a rope coring gooseneck or a hollow reverse circulation gooseneck, and the gooseneck is connected with the sealing box of the core; the gear shifting mechanism and the hydraulic control device are arranged on the gearbox. The power head of the drilling machine can be switched to different drilling processes, so that the drilling machine is multipurpose, the equipment cost is reduced, the time consumed by operation is shortened, and the exploration efficiency is improved.
Description
Technical Field
The invention relates to geological exploration equipment, in particular to a drilling machine power head for various drilling processes.
Background
The existing geological exploration projects are various in types, and the adopted drilling process is also various. The geological structures of the covering layer and the ore body of many exploration projects are clear, detailed sampling is not needed, only specific data needs to be confirmed again, and air reverse circulation sampling can be adopted for quick construction. Some geological exploration projects only sample a target stratum, and a complex covering layer on the upper part of the target stratum can quickly pass through the target stratum by adopting air drilling and then is constructed by a rope coring process to carry out detailed exploration coring. Some exploration projects need to find out specific content of minerals, and some stratum conditions are complex and need representative samples, so that core drilling construction is necessary.
When a drilling machine only suitable for a certain drilling process is used, if a project using various drilling processes needs to be completed, a plurality of different devices need to be provided to complete construction, so that the purchase cost of the devices is increased, the well site arrangement is relatively complex, the working difficulty of constructors is increased, or more constructors are needed to use corresponding devices. The requirements of different drilling processes on drilling machines are greatly different, and the main difference is that the rotating speed of a power head and the required rotary torque during working are greatly different. When the rotary drilling process of the diamond drill bit is adopted for construction, the rotary linear speed of the drill bit is required to be high, the power head is required to have high rotating speed output capacity, the output rotating speed of the power head generally reaches 1000 revolutions per minute, and when a drill bit with a larger diameter is used, the rotating speed generally exceeds 400 revolutions per minute. During the air drilling process, the drill bit is used for crushing rocks through rotary extrusion, the rotating speed is generally 20-150 revolutions per minute, but the required torque is large. The traditional drilling machine with a single construction process cannot well adapt to the parameter requirements of other drilling processes, mainly has large difference of rotation torque and different rotation speed requirements, and cannot meet the construction requirements.
Existing solutions for drilling rigs using a variety of drilling processes: firstly, a plurality of power heads are prepared and respectively used for different drilling processes, when the process required by construction is determined, the corresponding power heads are replaced and installed in advance, if the process is required to be replaced on site, a hydraulic system cannot be ensured to be clean, hydraulic elements are easy to damage, and rapid conversion of various processes cannot be realized; secondly, two power heads with different outputs are installed up and down to drive the same output shaft to correspond to different process constructions, the upper power head and the lower power head are adopted together with the intermediate transition shaft and the upper sealing device and the lower sealing device thereof, the structure is long in size and occupies a plurality of positions, the mast needs to be heightened and lengthened, and the two different rotating speeds are output simultaneously, so that the requirements on multiple process constructions of projects can not be met; thirdly, more power heads are arranged on one bracket, and the power heads are moved to working positions to be switched when the power heads are used, so that the requirements of various processes can be met, but the overall size is relatively large, the mast needs to adopt a wider truss structure or a gate-type mast correspondingly, and the overall mechanism of the drilling machine is very large.
Disclosure of Invention
Technical problem to be solved
The invention provides a drilling machine power head suitable for various drilling processes, and aims to solve the problem that an existing drilling machine cannot rapidly switch various drilling processes.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that: the variable displacement motor, the gearbox, the gear box, the core tube sealing box, the drilling device, the sliding device, the gooseneck, the gear shifting mechanism and the hydraulic control device;
the variable motor is in transmission connection with the gearbox, the gearbox is fixedly arranged on the gearbox, and a gearbox output shaft is arranged in the gearbox;
the gear box is provided with a gear box output shaft which is of a hollow structure, and the variable displacement motor can transmit power to the gear box output shaft through the gear box and the gear box; one end of the output shaft of the gear box is connected with the core tube sealing box; the other end of the output shaft of the gear box is detachably connected with the drilling device;
the drilling device is a gas discharge box or a conversion device;
the sliding device is arranged on the gear box and can drive the gear box to move;
the gooseneck is a rope coring gooseneck or a hollow reverse circulation gooseneck, and the gooseneck is detachably connected with the gooseneck sealing box;
the gear shifting mechanism is arranged on the gearbox and used for adjusting the speed of the gearbox;
the hydraulic control device is arranged on the gearbox and used for regulating and controlling the rotating speed of the variable motor.
Preferably, the gearbox comprises a vertically arranged gearbox input shaft, a gearbox intermediate shaft, a horizontally arranged gear pair and the gearbox output shaft; the gearbox input shaft is connected with the gearbox output shaft, and the gearbox intermediate shaft is in transmission connection with the gearbox input shaft and the gearbox output shaft through the gear pair respectively; the gearbox input shaft, the gearbox intermediate shaft and the gearbox output shaft are all mounted in a box body of the gearbox through bearings.
Preferably, the core tube sealing box comprises a box body, a rotary core tube and a combined dynamic seal; the inner circle of the combined dynamic seal is in contact connection with the outer circle of the rotary core tube, the outer side of the combined dynamic seal is connected with the box body, and one end of the rotary core tube is connected with the output shaft of the gear box.
Preferably, the sliding device comprises a bracket, a horizontal guide rail, a clamping plate and a sliding oil cylinder; the horizontal guide rail symmetry is located the both ends of gear box, splint are located on the bracket, the horizontal guide rail install in the splint, still be equipped with on the bracket the hydro-cylinder that slides, the hydro-cylinder that slides can promote the gear box motion.
Preferably, the hollow reverse circulation gooseneck comprises an arc pipe, a cover plate, a slag discharge pipe and a slag discharge pipe bracket; one end of the arc pipe is detachably connected with the core pipe sealing box, the other end of the arc pipe is butted with the slag discharge pipe, and the cover plate is arranged on the outer side of the arc pipe; one end of the slag discharging pipe support is fixed on the gear box, the other end of the slag discharging pipe support is connected with the slag discharging pipe to support the slag discharging pipe, and the gear box output shaft, the core pipe sealing box and the arc pipe are sequentially communicated to form an air channel.
Preferably, the rope core gooseneck comprises an auxiliary pipe, a central pipe and a plug; the auxiliary pipeline is communicated with the central pipeline, the plug is installed at the top end of the central pipeline, the bottom end of the central pipeline is detachably connected with the core tube sealing box, and the gear box output shaft, the core tube sealing box and the central pipeline are sequentially communicated to form a medium channel.
Preferably, the drilling machine power head further comprises a lubricating and cooling device, the lubricating and cooling device comprises a lubricating pump, an oil path distribution block, a first lubricating oil pipe, a second lubricating oil pipe, a filter and an oil pan, and the oil path distribution block is of a one-inlet-multiple-outlet structure; the lubricating pump and the oil path distribution block are arranged on the gearbox, the filter is connected with the oil path distribution block, a driving shaft of the lubricating pump is connected with the gearbox in a rotating mode, the oil pan is arranged at the bottom of the gearbox, an oil suction port of the lubricating pump is connected with an oil outlet of the oil pan through the first lubricating oil pipe, the oil outlet of the lubricating pump is connected with the filter, the filter is connected with the oil path distribution block, and the oil path distribution block is connected with the gearbox through the second lubricating oil pipe.
Preferably, the drill power head further comprises various sensors, wherein the sensors comprise a displacement sensor, a temperature sensor, a rotating speed sensor and a pressure sensor; the displacement sensor is arranged on the sliding device, the temperature sensor is arranged on the oil pan, the rotating speed sensor is arranged on the variable motor, and the pressure sensor is arranged at an oil outlet of the lubricating pump.
Preferably, both ends of the output shaft of the gear box are provided with rotary sealing rings.
Preferably, the lower air box comprises a lower air box main shaft, a lower air box inner pipe and a lower air box conversion joint; one end of the lower air box main shaft is detachably connected with the gear box output shaft, the other end of the lower air box main shaft is connected with the lower air box adapter, the lower air box adapter is used for being in butt joint with an outer pipe of a double-wall drill rod, an inner pipe of the lower air box is arranged in the lower air box main shaft and is longer than the lower air box main shaft, the lower end of the inner pipe of the lower air box is used for being in butt joint with an inner pipe of the double-wall drill rod, and sealing rings are arranged at two ends of the inner pipe of the lower air box.
(III) advantageous effects
The invention has the beneficial effects that: the drilling machine power head suitable for various drilling processes can adopt different drilling processes by adjusting gears and a hydraulic control device and simultaneously disassembling and assembling components such as a lower air box, a conversion device, a hollow reverse circulation gooseneck, a rope coring gooseneck and the like, thereby realizing the conversion of various drilling process operations, further improving the efficiency of the drilling operations and reducing the time consumed by process conversion. The power head of the drilling machine can also be set in any state from high-speed small torque to low-speed large torque, so that the requirements of different drilling process construction are met, and particularly the requirements of a diamond rope coring drilling process and an air reverse circulation sampling drilling process can be met; different drilling processes can be selected according to different stratum conditions and different drilling depths, multiple purposes of one machine can be realized through convenient conversion, the equipment cost is reduced, the operation time is shortened, and the exploration efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a drill head provided in the present invention;
fig. 2 is a structure diagram of a lubricating and cooling device of a drilling machine power head provided by the invention.
Fig. 3 is a schematic structural diagram of the power head of the drilling machine provided by the invention during the operation of the rope core drilling process.
Fig. 4 is a schematic structural diagram of the drill power head provided by the invention during the operation of the air reverse circulation sampling drilling process.
[ description of reference ]
1: a variable displacement motor; 2: a gearbox; 3: a gear case; 31: a gearbox output shaft;
41: a gearbox output shaft; 42: a gearbox input shaft; 43: a gearbox intermediate shaft;
5: a core tube seal box; 51: a rotating core tube; 52: combining and sealing; 53: a box body;
6: a slipping device; 61: a bracket; 62: a horizontal guide rail; 63: a sliding oil cylinder; 64: a splint;
7: a hollow reverse circulation gooseneck; 71: a circular arc tube; 72: a cover plate; 73: a slag discharge pipe; 74: a slag discharge pipe support;
8: rope coring gooseneck; 81: an auxiliary pipe; 82: a central conduit; 83: a plug;
9: a gas discharging box; 91: a lower air box main shaft; 92: an inner tube of the lower air box; 93: a lower air box adapter;
10: a conversion device; 11: a gear shift mechanism; 12: a hydraulic control device;
131: a lubrication pump; 132: an oil path distribution block; 133: a filter; 134: an oil pan;
14: a temperature sensor; 15: a rotation speed sensor.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention provides a drill head for multiple drilling processes, as shown in fig. 1, comprising: the variable displacement drilling machine comprises a variable displacement motor 1, a gearbox 2, a gear box 3, a core tube sealing box 5, a drilling device, a sliding device 6, a gooseneck, a gear shifting mechanism 11 and a hydraulic control device 12; the variable motor 1 is in transmission connection with the gearbox 2, the gearbox 2 is fixedly arranged on the gearbox 3, and a gearbox output shaft 41 is arranged in the gearbox 2; the gear box 3 is provided with a gear box output shaft 31, the gear box output shaft 31 is of a hollow structure, and the variable displacement motor 1 can transmit power to the gear box output shaft 31 through the gear box 2 and the gear box 3; one end of the output shaft 31 of the gear box is connected with the core tube sealing box 5; the other end of the output shaft 31 of the gear box is detachably connected with the drilling device; the drilling device is a lower gas box 9 or a conversion joint; the sliding device 6 is arranged on the gear box 3 and can drive the gear box 3 to move; the gooseneck is a rope coring gooseneck 8 or a hollow reverse circulation gooseneck 7, and the gooseneck is detachably connected with the sealing box 5 of the gooseneck; the gear shifting mechanism 11 is arranged on the gearbox 2 and used for adjusting the speed of the gearbox 2; the hydraulic control device 12 is arranged on the gearbox 2 and is used for regulating and controlling the rotating speed of the variable displacement motor 1. The gearbox 2 has a plurality of gears, and the gearbox 2 realizes speed change and torque conversion through hydraulic transmission and gear combination. The variable displacement motor 1 is preferably a plunger variable displacement motor, and the rotation speed of the output shaft 31 of the gear box can be changed by setting different gears.
The drilling machine power head suitable for various drilling processes provided by the invention can correspondingly adopt different drilling processes by adjusting gears and the hydraulic control device 12 and simultaneously disassembling and assembling the lower air box 9, the conversion device 10, the hollow reverse circulation gooseneck 7, the rope coring gooseneck 8 and other components, thereby realizing the conversion of various drilling process operations, further improving the efficiency of the drilling operation and reducing the time consumed by process conversion. The power head of the drilling machine can also be set in any state from high-speed small torque to low-speed large torque, so that the requirements of different drilling process construction are met, and particularly the requirements of a diamond rope coring drilling process and an air reverse circulation sampling drilling process can be met; different drilling processes can be selected according to different stratum conditions and different drilling depths, multiple purposes of one machine can be realized through convenient conversion, the equipment cost is reduced, the operation time is shortened, and the exploration efficiency is improved.
It should be noted that the shift mechanism 11 includes a shift handle and a shift fork, the end of the shift handle is connected to the shift fork in the transmission case 2, the shift fork is connected to the transmission case output shaft 41 through a spline, the handle drives the shift fork to push the spline, so as to switch the transmission route, and the handle is provided with a mechanical locking device to prevent gear shift. When the air reverse circulation rapid sampling drilling process is carried out, the gear box 2 is set to be the first gear with the lowest speed through the gear shifting mechanism 11, and low-speed large-torque power is provided; when carrying out diamond gyration rope coring and creep into technology, according to the difference of drilling rod diameter, through the gear of gearshift 11 reasonable selection derailleur, through adjustment variable motor discharge capacity, set for, can provide the most reasonable rotational speed under the different drilling tools of adaptation, guarantee here sufficient power deposit occasionally simultaneously, can satisfy the power take off demand of multiple drilling operation.
In a preferred embodiment, the gearbox 3 comprises a vertically arranged gearbox input shaft 42, a gearbox intermediate shaft 43, a horizontally arranged gear pair and a gearbox output shaft 31; the gearbox input shaft 42 is connected with the gearbox output shaft 41, and the gearbox intermediate shaft 43 is in transmission connection with the gearbox input shaft 42 and the gearbox output shaft 31 through gear pairs respectively; the gearbox input shaft 42, the gearbox intermediate shaft 43 and the gearbox output shaft 31 are all mounted in the housing of the gearbox 3 by bearings. Specifically, the gearbox output shaft 41 is connected with the gearbox input shaft 42 through a spline, the gearbox input shaft 42 and the gearbox intermediate shaft 43 realize transmission through a gear pair, and the gearbox intermediate shaft 43 realizes transmission with the gearbox 3 through the gear pair, so that power transmission is realized.
Further, the core tube sealing box 5 comprises a box body 53, a rotary core tube 51 and a combined dynamic seal 52; the combined dynamic seal 52 is arranged in the box body 53, the inner circle of the combined dynamic seal 52 is in contact connection with the outer circle of the rotary core tube 51, the outer side of the combined dynamic seal 52 is connected with the box body 53, and one end of the rotary core tube 51 is connected with the output shaft 31 of the gear box. By arranging the combined dynamic seal 52, the rotary core tube 51 is sealed, and the leakage of the gap among the high-speed rotary gearbox output shaft 31, the rotary core tube 51 and the gooseneck in the drilling process is prevented.
In addition, the sliding device 6 comprises a bracket 61, a horizontal guide rail 62, a clamping plate 64 and a sliding oil cylinder 63; horizontal guide rail 62 symmetry is located the both ends of gear box 3, and splint 64 is located on bracket 61, and horizontal guide rail 62 installs in splint 64, still is equipped with the hydro-cylinder 63 that slides on bracket 61, and the hydro-cylinder 63 that slides can promote the motion of gear box 3, and variable displacement motor 1, gearbox 2 and gear box 3 can move together, and portable gear box 3 lets out workspace during the construction.
When the air reverse circulation sampling drilling process is adopted, a hollow reverse circulation gooseneck 7 is adopted, as shown in fig. 4, the hollow reverse circulation gooseneck 7 comprises an arc pipe 71, a cover plate 72, a slag discharge pipe 73 and a slag discharge pipe bracket 74; one end of the arc pipe 71 is detachably connected with the core tube sealing box 5, the other end of the arc pipe 71 is butted with the slag discharge pipe 73, and the cover plate 72 is arranged on the outer side of the arc pipe 71; one end of the slag discharging pipe support 74 is fixed on the gear box 3, the other end of the slag discharging pipe support 74 is connected with the slag discharging pipe 73 to support the slag discharging pipe 73, and the gear box output shaft 31, the core pipe sealing box 5 and the arc pipe 71 are sequentially communicated to form an air channel. Preferably, the circular arc tube 71 is connected to the box 53 of the stem seal box 5 by a flange.
When the rope core drilling process is adopted, the rope core gooseneck 8 is adopted, and as shown in fig. 3, the rope core gooseneck 8 comprises an auxiliary pipeline 81, a central pipeline 82 and a plug 83; the auxiliary pipeline 81 is communicated with the central pipeline 82, the plug 83 is installed at the top end of the central pipeline 82, the bottom end of the central pipeline 82 is detachably connected with the core tube sealing box 5, and the gear box output shaft 31, the core tube sealing box 5 and the central pipeline 82 are sequentially communicated to form a medium channel. Preferably, the central conduit 82 is flanged to the body 53 of the mandrel seal cartridge 5.
As shown in fig. 2, the drilling machine power head further includes a lubricating and cooling device, the lubricating and cooling device includes a lubricating pump 131, an oil path distribution block 132, a first lubricating oil pipe, a second lubricating oil pipe, a filter 133, and an oil pan 134, and the oil path distribution block 132 is of a one-in-multiple-out structure; the lubricating pump 131 and the oil path distribution block 132 are arranged on the gearbox 2, the filter 133 is connected with the oil path distribution block 132, a driving shaft of the lubricating pump 131 is rotationally connected with the gearbox 2, and the gearbox 2 drives the lubricating pump 131 to work in the working process; the oil pan 134 is arranged at the bottom of the gear box 3, an oil suction port of the lubricating pump 131 is connected with an oil outlet of the oil pan 134 through a first lubricating oil pipe, the oil outlet of the lubricating pump 131 is connected with a filter 133, the filter 133 is connected with an oil path distribution block 132, and the oil path distribution block 132 is connected with the gear box 3 through a second lubricating oil pipe. Lubricating oil output from an oil outlet of the lubricating pump 131 is filtered by a filter 133 and then is conveyed to the oil path distribution block 132, and then is conveyed into the gearbox 3 through a second lubricating pipeline; specifically, a lubricating oil channel is arranged in the gear box 3, and lubricating oil can flow into the lower oil pan 134 from the gear box 3; through setting up lubricated cooling device for lubricating oil can circulate and carry the bearing part in the box of gear box 3, and lubricating oil flows into the box of gear box 3, provides sufficient lubricating oil, lubricates and cools off necessary bearing position, flows into oil pan 134 at last, has increased heat radiating area through the box of gear box 3 and oil pan 134, realizes lubricated and radiating dual effect.
Furthermore, the drill power head also comprises various sensors, wherein the sensors comprise a displacement sensor, a temperature sensor 14, a rotating speed sensor 15 and a pressure sensor; the displacement sensor is arranged on the sliding device 6, the temperature sensor 14 is arranged on the oil pan 134, the rotating speed sensor 15 is arranged on the variable motor 1, and the pressure sensor is arranged at an oil outlet of the lubricating pump 131. The working state of the lubricating and cooling device can be judged in time by arranging the pressure sensor and the temperature sensor 14, and abnormal accidents such as overheating of the power head are avoided. By arranging a displacement sensor on the sliding device 6 (particularly the bracket 61), the height of the power head can be monitored at any time in the drilling process, and the drilling speed and the footage condition can be further calculated. The displacement of the variable motor can be set at any time on the control console by arranging the rotating speed sensor 15, the output rotating speed of the variable motor 1 is changed, and then the stepless constant power output between the highest speed and the lowest speed is realized by changing the gear of the gearbox 2, so that the requirements of various drilling construction processes can be met.
In addition, the two ends of the output shaft 31 of the gear box are provided with rotary sealing rings, the rotary sealing rings can ensure the sealing performance of the joint of the output shaft 31 of the gear box and the box body, and the scattering of oil and the entering of dust in the air are prevented. The lower end of the output shaft 31 of the gear box is connected with the lower air box 9 or the conversion device 10 through a screw thread, preferably, the lower end of the output shaft 31 of the gear box is provided with a clamping groove, the upper ends of the lower air box 9 and the conversion device 10 are both provided with a left-hand thread, the clamping groove is provided with a pair of locking rings, and steps in the anti-loosening locking nut compress the locking rings and are connected with the left-hand thread of the lower air box 9 or the conversion device 10 through the screw thread, so that the rapid switching of different drilling processes is realized.
When the rope core drilling process is adopted, as shown in fig. 3, the conversion device 10 is installed below the gear box output shaft 31, the conversion device 10, the gear box output shaft 31, the rotary core tube 51 and the rope core gooseneck 8 form a medium channel for supplying slurry together, a sealing ring is arranged at the joint of the rope core gooseneck 8 and the core tube sealing box 5, and meanwhile, a guide roller is installed at the bottom of the bracket 61 through a bolt.
Further, when the rope core drilling process is adopted, the specific working process is as follows: a rope core-taking gooseneck 8 is arranged above the core tube sealing box 5, a conversion device 10 is arranged at the lower end of an output shaft 31 of the gear box, the conversion device 10 is connected with the drill rods through screw threads, the gears of the speed changer are reasonably selected according to the different diameters of the drill rods, and the most reasonable rotating speed suitable for different drill rods is provided by setting through adjusting the displacement of the variable motor; at the moment, the gear box output shaft 31 drives the rotary core tube 51 to rotate, the rope core gooseneck 8 is arranged above the core tube sealing box 5, and a circulating medium is sent into a lower drill rod through the rope core gooseneck 8, the rotary core tube 51, the gear box output shaft 31 and the conversion device 10 during drilling, so that the drilling operation is carried out to collect a rock sample.
When the air reverse circulation sampling drilling process operation is adopted, as shown in fig. 4, a lower air box 9 is arranged below the output shaft 31 of the gear box, and the lower air box 9 comprises a lower air box main shaft 91, a lower air box inner pipe 92 and a lower air box adapter 93; one end of the lower air box main shaft 91 is detachably connected with the output shaft 31 of the gear box, the other end of the lower air box main shaft 91 is connected with the lower air box adapter 93, the lower air box adapter 93 is used for being in butt joint with the outer pipe of the double-wall drill rod, the lower air box inner pipe 92 is arranged in the lower air box main shaft 91 and is longer than the lower air box main shaft 91, the lower end of the lower air box inner pipe 92 is used for being in butt joint with the inner pipe of the double-wall drill rod, and sealing rings are arranged at two ends of the lower air box inner pipe 92.
Further, the specific working process of the drilling process adopting air reverse circulation sampling is as follows: an air reverse circulation gooseneck is arranged above the mandrel seal box 5, the slag discharge pipe 73 is connected with the slag discharge pipe bracket 74, then the lower air box 9 is arranged below the output shaft 31 of the gear box, and at the moment, the gear box 2 is set to be the lowest speed gear through the gear shifting mechanism 11, so that low-speed and high-torque power is provided; during drilling construction, the comprehensively crushed rock debris brought by high-speed flowing air is continuously returned to slag from the air channel, and the high-speed rock debris brought by the air enters the output shaft 31 of the gear box and the rotary core tube 51 through the central channel of the drilling tool and then is conveyed into the slag discharge tube 73 through the air reverse circulation gooseneck tube so as to be guided back to the rock sample collecting device.
It should be understood that the above description of specific embodiments of the present invention is only for the purpose of illustrating the technical lines and features of the present invention, and is intended to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, but the present invention is not limited to the above specific embodiments. It is intended that all such changes and modifications as fall within the scope of the appended claims be embraced therein.
Claims (10)
1. A drill head for use in a plurality of drilling processes, the drill head comprising: the variable displacement motor, the gearbox, the gear box, the core tube sealing box, the drilling device, the sliding device, the gooseneck, the gear shifting mechanism and the hydraulic control device;
the variable motor is in transmission connection with the gearbox, the gearbox is fixedly arranged on the gearbox, and a gearbox output shaft is arranged in the gearbox;
the gear box is provided with a gear box output shaft which is of a hollow structure, and the variable displacement motor can transmit power to the gear box output shaft through the gear box and the gear box; one end of the output shaft of the gear box is connected with the core tube sealing box; the other end of the output shaft of the gear box is detachably connected with the drilling device;
the drilling device is a gas discharge box or a conversion device;
the sliding device is arranged on the gear box and can drive the gear box to move;
the gooseneck is a rope coring gooseneck or a hollow reverse circulation gooseneck, and the gooseneck is detachably connected with the gooseneck sealing box;
the gear shifting mechanism is arranged on the gearbox and used for adjusting the speed of the gearbox;
the hydraulic control device is arranged on the gearbox and used for regulating and controlling the rotating speed of the variable motor.
2. The drill head of claim 1, wherein: the gearbox comprises a vertically arranged gearbox input shaft, a gearbox intermediate shaft, a horizontally arranged gear pair and a gearbox output shaft; the gearbox input shaft is connected with the gearbox output shaft, and the gearbox intermediate shaft is in transmission connection with the gearbox input shaft and the gearbox output shaft through the gear pair respectively; the gearbox input shaft, the gearbox intermediate shaft and the gearbox output shaft are all mounted in a box body of the gearbox through bearings.
3. The drill head of claim 2, wherein: the core tube sealing box comprises a box body, a rotary core tube and a combined dynamic seal; the inner circle of the combined dynamic seal is in contact connection with the outer circle of the rotary core tube, the outer side of the combined dynamic seal is connected with the box body, and one end of the rotary core tube is connected with the output shaft of the gear box.
4. The drill head of any of claims 1-3, wherein: the sliding device comprises a bracket, a horizontal guide rail, a clamping plate and a sliding oil cylinder; the horizontal guide rail symmetry is located the both ends of gear box, splint are located on the bracket, the horizontal guide rail install in the splint, still be equipped with on the bracket the hydro-cylinder that slides, the hydro-cylinder that slides can promote the gear box motion.
5. The drill head of any of claims 1-3, wherein: the hollow reverse circulation gooseneck comprises an arc pipe, a cover plate, a slag discharge pipe and a slag discharge pipe bracket; one end of the arc pipe is detachably connected with the core pipe sealing box, the other end of the arc pipe is butted with the slag discharge pipe, and the cover plate is arranged on the outer side of the arc pipe; one end of the slag discharging pipe support is fixed on the gear box, the other end of the slag discharging pipe support is connected with the slag discharging pipe to support the slag discharging pipe, and the gear box output shaft, the core pipe sealing box and the arc pipe are sequentially communicated to form an air channel.
6. The drill head of any of claims 1-3, wherein: the rope core-taking gooseneck comprises an auxiliary pipeline, a central pipeline and a plug; the auxiliary pipeline is communicated with the central pipeline, the plug is installed at the top end of the central pipeline, the bottom end of the central pipeline is detachably connected with the core tube sealing box, and the gear box output shaft, the core tube sealing box and the central pipeline are sequentially communicated to form a medium channel.
7. The drill head of any of claims 1-3, wherein: the drilling machine power head further comprises a lubricating and cooling device, the lubricating and cooling device comprises a lubricating pump, an oil path distribution block, a first lubricating oil pipe, a second lubricating oil pipe, a filter and an oil pan, and the oil path distribution block is of a one-inlet-multiple-outlet structure; the lubricating pump and the oil path distribution block are arranged on the gearbox, the filter is connected with the oil path distribution block, a driving shaft of the lubricating pump is connected with the gearbox in a rotating mode, the oil pan is arranged at the bottom of the gearbox, an oil suction port of the lubricating pump is connected with an oil outlet of the oil pan through the first lubricating oil pipe, the oil outlet of the lubricating pump is connected with the filter, the filter is connected with the oil path distribution block, and the oil path distribution block is connected with the gearbox through the second lubricating oil pipe.
8. The drill head of claim 7, wherein: the drilling machine power head also comprises a plurality of sensors, wherein the sensors comprise a displacement sensor, a temperature sensor, a rotating speed sensor and a pressure sensor; the displacement sensor is arranged on the sliding device, the temperature sensor is arranged on the oil pan, the rotating speed sensor is arranged on the variable motor, and the pressure sensor is arranged at an oil outlet of the lubricating pump.
9. The drill head of any of claims 1-3, wherein: and rotary sealing rings are arranged at two ends of the output shaft of the gear box.
10. The drill head of any of claims 1-3, wherein: the lower air box comprises a lower air box main shaft, a lower air box inner pipe and a lower air box conversion joint; one end of the lower air box main shaft is detachably connected with the gear box output shaft, the other end of the lower air box main shaft is connected with the lower air box adapter, the lower air box adapter is used for being in butt joint with an outer pipe of a double-wall drill rod, an inner pipe of the lower air box is arranged in the lower air box main shaft and is longer than the lower air box main shaft, the lower end of the inner pipe of the lower air box is used for being in butt joint with an inner pipe of the double-wall drill rod, and sealing rings are arranged at two ends of the inner pipe of the lower air box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911215179.1A CN112983251B (en) | 2019-12-02 | 2019-12-02 | Drilling machine power head for various drilling processes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911215179.1A CN112983251B (en) | 2019-12-02 | 2019-12-02 | Drilling machine power head for various drilling processes |
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| CN112983251A true CN112983251A (en) | 2021-06-18 |
| CN112983251B CN112983251B (en) | 2023-06-27 |
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| US20060191718A1 (en) * | 2003-04-16 | 2006-08-31 | Particle Drilling Technologies, Inc. | Impact excavation system and method with injection system |
| CN202832190U (en) * | 2012-09-25 | 2013-03-27 | 无锡金帆钻凿设备股份有限公司 | Multifunctional power head of drilling machine |
| CN103982132A (en) * | 2014-05-22 | 2014-08-13 | 中国地质装备集团有限公司 | Geological exploration multi-process drilling machine power head |
| US20170321807A1 (en) * | 2016-05-05 | 2017-11-09 | National Oilwell Varco, L.P. | Washpipe assemblies for a power swivel |
| CN209067091U (en) * | 2018-11-13 | 2019-07-05 | 王迎 | A kind of novel hydraulic power head |
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2019
- 2019-12-02 CN CN201911215179.1A patent/CN112983251B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060191718A1 (en) * | 2003-04-16 | 2006-08-31 | Particle Drilling Technologies, Inc. | Impact excavation system and method with injection system |
| CN202832190U (en) * | 2012-09-25 | 2013-03-27 | 无锡金帆钻凿设备股份有限公司 | Multifunctional power head of drilling machine |
| CN103982132A (en) * | 2014-05-22 | 2014-08-13 | 中国地质装备集团有限公司 | Geological exploration multi-process drilling machine power head |
| US20170321807A1 (en) * | 2016-05-05 | 2017-11-09 | National Oilwell Varco, L.P. | Washpipe assemblies for a power swivel |
| CN209067091U (en) * | 2018-11-13 | 2019-07-05 | 王迎 | A kind of novel hydraulic power head |
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| CN112983251B (en) | 2023-06-27 |
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